PS

*gilˁ- - prepuce, clitoris (SED I No. 76)

Possibly derived from Sem. *glˁ ‘to uncover’ (in Hbr. pB., Arb., Tgr., etc., cf. [CDG 189]) implying that what later acquired the meaning ‘prepuce’ or related meanings in Syr. and Arb., and ‘clitoris’ in MSA (note that clitoral circumcision is a well-attested practice in a few regions of Southern Arabia, cf. [GD 565] with literature) originally meant ‘the member subject to uncovering (= circumcision)’.

Syriac
gəlaˁtā - foreskin (LSyr. 119, SL 239)
The other meaning is, strangely enough, ‘date stones’ (SL 238)
Arabic
ǯlˁ - oter, enlever le prépuce (dans la circoncision) (to take off, remove the foreskin (in circumcision) (BK 1 316)
Mehri
gəlōt - clitoris (ML 118)
Jibbali
giẑˁɔ́t - clitoris (JL 75)